Upwork WordPress Test Answers 2015

Upwork twitter bootstrap test answers 2015

This blog does contain all questions and answers for upwork (formally oDesk) WordPress test to help you all wordpress developers and designers to ace this test.

Our goal is to help you to be more knowledgeable, so we don't simply provide answers to the questions, we provide information related to that question.

If you check the questions and all related information provided, you will get an excellent score and knowledge to do a better job on WordPress projects.

So lets start

WordPress test - May 2015
This test is about 45 multiple choice questions and should take less than 45 minutes to complete

Test Content:

• Installation
• Basics & Dashboard Navigation
• Theme Development
• Plugin Development
• WP Core & The Loop
• Data Management
• Content Management & Aggregation
• UX
• Performance & Scalability
• User Access & Security
• Multisite (MU)
• Taxonomies & Metadata

Question 1 of 45: Which of the following will correctly load localized (translated) text for a WordPress plugin?


    function custom_theme_setup() {
      $lang_dir = get_template_directory() . '/lang');
      load_theme_textdomain('tutsplus', $lang_dir);
    }
    add_action('after_setup_theme', 'custom_theme_setup');


    function custom_theme_setup() {
      $lang_dir = get_template_directory() . '/lang');
      add_action('after_setup_theme', 'custom_theme_setup');
    }


    function custom_theme_setup() {
      $lang_dir = get_template_directory() . '/lang');
      add_action('after_setup_theme', 'custom_theme_setup');
    }
    load_theme_textdomain('tutsplus', $lang_dir);


    function load_theme_textdomain('tutsplus., $lang_dir); {
      $lang_dir = get_template_directory() . '/lang');
      custom_theme_setup();
    }
    add_action('after_setup_theme', 'custom theme_setup');

click here to learn more about translation in WordPress.

Question 2 of 45: How can a post ID be retrieved from the permalink?


                	Its not possible to retrieve the post ID from a permalink due to its structure.


                	It can be retrieved by using a Regular Expression.


                	wp_get_post_id($permalink)


                	url_to_postid($permalink)

Function Reference (url to postid)

Question 3 of 45: Which of the following will correctly add custom mod rewrite rules to .htaccess from a WordPress plugin?


                	$custom_mod_rewrite = new custom_mod_rewrite;
                    register_activation_hook(__FILE__ , array($custom_mod_rewrite,'flush_rewrite_rules'));
                    register_deactivation_hook(__FILE__ , array($custom_mod_rewrite,'flush_rewrite_rules'));
                    add_action('generate_rewrite_rules', array($custom_mod_rewrite,"generate_rewrite_rules"));
                    
                    class custom_mod_rewrite {
                    	function __construct(){
                        	$this->wp_rewrite = & $POST["wp_rewrite"];
                    }}


                	$custom_mod_rewrite = new custom_mod_rewrite;
                    register_activation_hook(__FILE__ , array($custom_mod_rewrite,'flush_rewrite_rules'));
                    register_deactivation_hook(__FILE__ , array($custom_mod_rewrite,'flush_rewrite_rules'));
                    add_action('generate_rewrite_rules', array($custom_mod_rewrite,"generate_rewrite_rules"));
                    
                    class custom_mod_rewrite {
                    	function __construct(){
                        	$this->wp_rewrite = & $GLOBALS["wp_rewrite"];
                    }}


                	$custom_mod_rewrite = new custom_mod_rewrite;
                    register_activation_hook(__FILE__ , array($custom_mod_rewrite,'flush_rewrite_rules'));
                    register_deactivation_hook(__FILE__ , array($custom_mod_rewrite,'flush_rewrite_rules'));
                    add_action('generate_rewrite_rules', array($custom_mod_rewrite,"generate_rewrite_rules"));
                    
                    class custom_mod_rewrite {
                    	function __construct(){
                        	$this->wp_rewrite = & $GLOBALS["wp_rewrite"];
                    	}
                        function mod_rewrite_rules($rules){
                        	return preg_replace('#^(RewriteRule \^.*/)\?\$plugin_name .*(http://.*)
                            \[QSA,L\]#mi', '$1 $2 [R=301,L]', $rules);
                        }
                    }


                	$custom_mod_rewrite = new custom_mod_rewrite;
                    register_activation_hook(__FILE__ , array($custom_mod_rewrite,'flush_rewrite_rules'));
                    register_deactivation_hook(__FILE__ , array($custom_mod_rewrite,'flush_rewrite_rules'));
                    add_action('generate_rewrite_rules', array($custom_mod_rewrite,"generate_rewrite_rules"));
                    
                    class custom_mod_rewrite {
                    	function __construct(){
                        	$this->wp_rewrite = & $SESSIONS["wp_rewrite"];
                    }}

Click here to learn more about WordPress Rewrite_API

Question 4 of 45: Which conditional tag checks if the dashboard or the administration panel is attempting to be displayed by returning "true" (if the URL being accessed is in the admin section)or "false" (for a front-end page).


                	my_admin()


                	view_admin()


                	is_admin()


                	root_admin()

click here to learn about conditional tags in WordPress

Question 5 of 45: Which of the following is the correct way to get WordPress Post ID from the Post title?


                	$page = get_page_title( 'About' );
					wp_pages( 'exclude=' . $page ->ID );


                	$page = get_page_by_title( 'Home' );
					$page_id = $page ->ID;


                	$page = get_page_by_title( 'About' );
					wp_pages( 'exclude=' . $page ->ID );


                	None of the above.

click here to learn more about Function Reference/get page by title

Question 6 of 45: Which of the following is the correct code to get an array of every image uploaded to aparticular post?


                	$images =& get_children('post_type=attachment&post_mime_type=image&post_parent=10' );


                	$images = wp_get_attachment_url( get_post_thumbnail_id($post->ID) );


                	$images = get_post(7, ARRAY_A);


                	It cannot be done

click here to learn more about Function get_children

Question 7 of 45: Which of the following functions can be used to create a WordPress page?


                	wp_insert_post()


                	wp_insert_page()


                	wp_create_post()


                	wp_create_page()

click here to learn more about wp_insert_post function

Question 8 of 45: Which of the following is the correct sequence of steps to adapt a WordPress plugin to a multisite?


                	1. Use $wpdb to iterate through all blogs
                    2. Hook according to the $blog_id
                    3. Install the plugin as Network only
                    4. Uninstall depends on the specific plugin


                	1. Use $wp_posts to iterate through all blogs
                    2. Hook according to the $function
                    3. Install the plugin as Network only
                    4. Uninstall depends on the specific plugin


                	1. Use $wp_posts to iterate through all blogs
                    2. Hook according to the $function
                    3. Install other activations except Network
                    4. Uninstall is the same for all the plugins


                	1. Use $wp_posts to iterate through all blogs
                    2. Hook according to the $function
                    3. Install the plugin as Network only
                    4. Uninstall is same for all the plugins

click here to learn more about

Question 9 of 45: Are categories and tags available for pages?

```
                	Yes
                
```
```
                	No
                
```

Question 10 of 45: Which of the following is a quick way to move a Wordpress website from one server to another?


                	Using migration plugin


                	Copying wordpress files and database from source to destination server


                	Using XML export through wp-admin interface


                	Install new wordpress and copy theme and plugin directory

click here to learn more about WP clone plugin

Question 11 of 45: Which of the following will hash a string/password to its md5 equivalent?


                	md5()


                	wp_generate_password()


                	wp_generate_md5()


                	password_md5()

click here to learn more about wp_generate_password function.

Question 12 of 45: Which of the following functions are used when adding CSS and jQuery codes on a WordPress plugin?


                	wp_register_style


                	wp_enqueue_style


                	wp_enqueue_script


                	None of these.

click here to learn more about wp_enqueue_script and the relates functions.

Question 13 of 45: Which of the following is an example of a WordPress plugin that provides multilingual capabilities?


                	WP Super Cache


                	qTranslate


                	BuddyPress


                	Hotfix

click here to learn more about qtranslate plugin.

Question 14 of 45: A possible way to allow the display of several authors' names on one post is to


                	update the database


                	change the admin settings


                	change the config files


                	use a plug-in

Question 15 of 45: Can the content of wp-content folder be moved or renamed without changing any settings?

```
                	Yes
                
```
```
                	No
                
```

Question 16 of 45: Which of the following commands can change the ownership of WordPress directory to www-data (for Apache)?


                	sudo chown -Rf www-data *


                	chown -Rf www-data *


                	sudo crown -Df www-data *


                	Alldo chown -Rf www-data *

click here to learn more about User and Group permissions, with chmod, and Apache.

Question 17 of 45: Which of the following is the correct way to redirect the default login and registration page URL to a custom login and registration page URL?


                	add_action('init','possibly_redirect');
                    function possibly_redirect(){
                    	global $pagenow;
                        if( 'wp-login.php' == $pagenow ){
                        	return('Your custom url');
                        	exit();
                        }
                    }


                	add_action('init','possibly_redirect');
                    function possibly_redirect(){
                    	global $pagenow;
                        if( 'wp-login.php' == $pagenow ){
                        	wp_redirect('Your custom url');
                        	exit();
                        }
                    }


                	add_action('init','possibly_redirect');
                    function possibly_redirect(){
                    	global $pagenow;
                        if( 'wp-login.php' == $pagenow ){
                        	redirect('Your custom url');
                        	exit();
                        }
                    }


                	add_action('init','possibly_redirect');
                    function possibly_redirect(){
                    	global $pagenow;
                        if( 'wp-login.php' == $pagenow ){
                        	wp_return('Your custom url');
                        	exit();
                        }
                    }

click here to learn more about wp_redirect function.

Question 18 of 45: Which of the following is the correct way to retrieve a featured image from a post?


                	echo get_post_thumb($page->ID, 'thumbnail');


                	echo get_featured_image($page->ID, 'thumbnail');


                	echo get_the_post_thumbnail($page->ID, 'thumbnail');


                	echo get_post_thumbnail($page->ID, 'thumbnail');

click here to learn more about get_the_post_thumbnail function.

Question 19 of 45: Which of the following code snippets will create plugins back-end page without showing it as menu item?


                	add_submenu_page with parent slug = null


                	add_menu_page with parent slug = null


                	add_submenu_page without parent slug = null


                	add_menu_page without parent slug = null

click here to learn more about add_submenu_page function

Question 20 of 45: What is the first action you need to take for enabling the WordPress multisite (MS)feature?


                	Enable the WordPress multisite feature on admin panel


                	Enable the Network feature


                	add this code to wp-config.php file: define( 'WP_ALLOW_MULTISITE', true );

click here to learn more about WordPress multisite.

Question 21 of 45: How can the class name of a sub-menu be changed in the wp_nav_menu?


                	By manually adding the class name in Appearance-->Menus


                	Wordpress does not support the ability to change the classname of a sub-menu in the wp_nav_menu.


                	By adding the following code in functions.php:
                    class UL_Class_Walker extends Walker_Nav_Menu{
                    	function start_lv1(&$output, $depth) {
                        	$indent = str_repeat("\t", $depth);
                            $output .= "\n$indent<ul class=\"level-".$depth."\">\n";
                        }
                    }


                	By adding the following code in header.php:
                    class UL_Class_Walker extends Walker_Nav_Menu{
                    	function start_lv1(&$output, $depth) {
                        	$indent = str_repeat("\t", $depth);
                            $output .= "\n$indent<ul class=\"level-".$depth."\">\n";
                        }
                    }

click here to learn more about wp_nav_menu function.

Question 22 of 45: Which of the following functions are used to add administration menu item in WordPress ?


                	add_menu_page();


                	add_admin_item();


                	add_admin_page();


                	add_admin_option();

click here to learn more about add_menu_page

Question 23 of 45: Which of the following code snippets best protects a system from SQL injections?


                	sql_real_escape_strong()


                	mysql_real_escape()


                	mysql_real_escape_string()


                	mysql_not_real_delete_string()

click here to learn more about mysql_real_escape_string function

Question 24 of 45: How would you integrate WordPress Tiny MCE editor with a plugin?


                	wp_enqueue_script(tiny_mce')


                	wp_editor( $content, $id );


                	add_action(init','tiny_mce')


                	Cannot integrate Tiny MCE with custom plug ins

click here to learn more about wp_editor function.

Question 25 of 45: Which of the following is a Online Code Coloring Service?


                	Prettify


                	SyntaxHighligheriext


                	Edit Pad


                	Collabedit

Question 26 of 45: What is the BEST way to get last inserted row ID from Wordpress database ?


                	Use the following code snippet:
                    $lastid->Swpdb=$last->get_row;


                	The call to mysql_insert_id() inside a transaction should be added:
                    mysql_query('BEGIN');
                    // Whatever code that does the insert here.
                    $id = mysql_insert_id();
                    mysql_query('COMMIT');
                    // Stuff with Sid.


                	The following code snippet should be added
                    $last = $wpdb->get_row("SHOW TABLE STATUS LIKE 'table name'");
                    $lastid = $last->Auto_increment;


                	right after the $wpdb->insert() insert, the following code should be added:
					$lastid = $wpdb->insert_id;

click here to learn more about wpdb Class.

Question 27 of 45: Which of the following is the correct way to print the slug property of $firstTag object in this code snippet? $tags = wp_get_post_tags($post->ID); $firstTag = $tags[0];


                	$firstTag['slug'];


                	$firstTag->slug;


                	$firstTag.slug;


                	$firstTag[0]['slug'];

click here to learn more about wp_get_post_tags function.

Question 28 of 45: __________________ can manage their own profiles, but can do virtually nothing else in the administration area.


                	Contributor


                	Author


                	Editor


                	Subscriber


                	Administrator

click here to learn more about user levels in wordPress

Question 29 of 45: What is the name of theme file for a page with id '3'?


                	page-id-3.php


                	page-3.php


                	3.php

click here to learn more about page templates in wordPress.

Question 30 of 45: You can limit the number of revisions WordPress stores by:


                	adding the following line to your wp-config.php file: 
                    define('WP_POST_REVISIONS', 3);


                	using a plugin


                	changing a setting on admin panel

click here to learn more about Revisions in wordPress

Question 31 of 45: Which of the following is the correct way to add a simple WordPress gallery in an external PHP file?


                	add_filter('do_shortcode[gallery]', 11);


                	echo do_shortcode('[gallery]');


                	add_filter('widget_text', 'do_shortcode[gallery]');


                	This can't be done.

click here to learn more about do_shortcode function.

Question 32 of 45: Which of the following WordPress Multisite functions allows for getting content from one blog and display it on another?


                	switch_blog()


                	switch_to_blog()


                	restore_current_blog()


                	restore_to_current_blog()

click here to learn more about switch_to_blog function.

Question 33 of 45: Meta tags can be added to WordPress pages by


                	using plug -ins


                	adding them to the header.php file


                	updating the database


                	using plug -ins and adding them to the header.php file


                	adding them to the header.php file and updating the database

Question 34 of 45: On which of the following databases can WordPress be installed by default?


                	MySQL


                	Oracle Database


                	Microsoft SQL Server


                	PostgreSQL

Question 35 of 45: Which of the following methods can be used to make permalinks SEO friendly?


                	Updating the database.


                	Changing the source code.


                	Configuring the feature in the config file.


                	Configuring the feature in the admin settings.

click here to learn more about

Question 36 of 45: Which of the following codes will return the current plugin directory in WordPress?


                	plugin_basename($file);


                	plugin_basename('url');


                	bloginfo_plugin('url');


                	content_plugin_ur1( $path );

click here to learn more about plugin_basename function.

Question 37 of 45: How can a custom content filter be added?


                	By using add_action('the_content','my_custom filter')


                	By using add_filter('the_content','my_custom filter')


                	By using wp_filter('the_content','my_custom filter')


                	By using add_action('content','my_custom filter')

click here to learn more about the_content filter.

Question 38 of 45: Which of the following actions cannot be hooked in with add_submenu_page() function?


                	admin_submenu


                	admin_menu


                	user_admin_menu


                	network_admin_menu

Question 39 of 45: How many built-in user roles does WordPress have?

```
                	3
                
```
```
                	4
                
```
```
                	5
                
```
```
                	6
                
```

Question 40 of 45: user Level 0 converts to __________


                	Subscriber

Question 41 of 45: User Level 1 converts to ___________


                	Contributor

Question 42 of 45: User Level 3 converts to ___________


                	Author

Question 43 of 45: User Level 7 converts to ___________


                	Editor

Question 44 of 45: _____________ can publish, edit, and delete their own posts. They cannot write pages. They can upload some kinds of media files, and they are allowed to use only the limited set of HTML tags.


                	Author

Question 45 of 45: A possible way to collect real-time statistics about traffic to a WordPress site is to:


                	use a plug-in

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